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Publications
   
  In addition to developing experimental forecast capabilities, NSIPP undertakes research on a variety of topics relevant to improving seasonal-to-interannual predictions.
   
  NSIPP Annual Reports
   
 
NSIPP Progress Report 1999  [pdf]
NSIPP Progress Report 2000  [pdf]
NSIPP Progress Report 2001  [pdf]
   
  Refereed Publications
  2003
 
Bacmeister, J. T., M. J. Suarez and M. Kistler, Influence of rain re-evaporation on Pacific rainfall patterns in AGCM, (draft version), 2003.[pdf]
 
  Figures, set 1 [pdf]
  Figures, set 2 [pdf]
 
  2002
 
Bacmeister, J. T. and M. J. Suarez, Wind-stress simulations and equatorial dynamics in an AGCM Part I: Basic results from a 1979-1999 forced SST experiment, J. Atmos. Sci., (in revision), 2002a.
 
Bacmeister, J. T. and M. J. Suarez, Wind-stress simulations and the equatorial momentum budget in an AGCM, J. Atmos. Sci., 59, 3051-3073, 2002.
 
Keppenne, C.L. and M.M. Rienecker, Assimilation of temperature into an isopycnal ocean general circulation model using a parallel Ensemble Kalman filter, J. Mar. Sys. (in press), 2002.
 
Keppenne, C.L. and M.M. Rienecker, Development and initial testing of a parallel Ensemble Kalman filter for the Poseidon isopycnal ocean general circulation model, Mon. Wea. Rev. 130, 2951-2965, 2002.
 
Nieto Ferreira, R., M. J. Suarez, and S. Nigam, Idealized simulations of the effects of Amazon convection and baroclinic waves on the South Atlantic convergence zone, J. Atmos. Sci. (in revision) 2002.
 
Reichle, R.H., J. P. Walker, R. D. Koster and P. R. Houser, Extended vs. Ensemble Kalman Filtering for Land Data Assimilation, J. Hydromet. , (in press), 2002.
 
Rickenbach, T. M., R. Nieto-Ferreira, J. Halverson, D. L. Herdies, and M. A. F. Silva Dias, Modulation of convection in the southwestern Amazon Basin by extratropical stationary fronts, J. Geophys. Res. , 107(D20), 8040, doi:10.1029/2000JD000263, 2002.
 
Schubert, S.D., M. J. Suarez, P. J. Pegion, R. D. Koster, and J. T. Bachmeister, Causes of Long-term drought in the United States Great Plains, J. Clim. (submitted), 2002.
 
Schubert, S., M. J. Suarez, P. Pegion and M. Kistler, and A. Kumar, Predictability of Zonal Means During Boreal Summer, J. Climate 15, 420-434, 2002.
 
Yuan, D., and M. M. Rienecker, 2002: Inverse estimation of sea surface heat fluxes over the equatorial Pacific ocean. Part I: Seasonal cycle, submitted to J. Geophys. Res.
 
2001
 
Borovikov, A., M. M. Rienecker, and P.S. Schopf, Surface heat balance in the Equatorial Pacific Ocean: Climatology and the warming event of 1994-95, J. Climate, 14, 2624-2641, 2001.
 
Coles, V., and M. M. Rienecker, North Pacific subtropical-tropical gyre exchanges in the thermocline: Simulations with 2 isopycnic OGCM's, J.Phys. Oceanogr., 31, 2590-2611, 2001.
 
Guillevic, P., R. D. Koster, M. J. Suarez, G. J. Collatz, L. Bounoua, and S. O. Los, Influence of vegetation interannual variability on hydrological processes over land surfaces, submitted to J. Hydromet.
 
Herdies, Dirceu L.; da Silva, Arlindo; Silva Dias, Maria A. F.; Nieto-Ferreira, Rosana 2002: Moisture budget of the bimodal pattern of the summer circulation over South America, J. Geophys. Res , 107(D20), 8075, doi:10.1029/2001JD000997.
 
Koster, R. D., P. A. Dirmeyer, A. N. Hahmann, R. Ijpelaar, L. Tyahla, P. Cox, and M. J. Suarez, Comparing the degree of land-atmosphere interaction in four atmospheric general circulation models, J. Hydromet., (in press).
 
Koster, R. D., and M. J. Suarez, Soil moisture memory in climate models, J. Hydromet., 2, 558-570, 2001.
 
Nieto Ferreira, R., T. M. Rickenbach, D. Herdies, and L. M. V. Carvalho: South American convection organization and circulation patterns during JFM 1998 and JFM 1999, submitted to Monthly Weather Review [pdf]
 
Nieto-Ferreira, R., T. M. Rickenbach, D. L. Herdies, and L. M. V. Carvalho: Variability of South American convective cloud systems and tropospheric cirrulation during January-March 1998 and 1999., (in press).
 
Schubert, S. D., M. J. Suarez, Y. Chang, and G. Branstator, The impact of ENSO on extratropical low frequency noise in seasonal forecasts, J. Climate, 14, 2351-2365, 2001.
 
Schubert, S., M. Suarez, P. Pegion and M. Kistler, 2001: Predictability of zonal means during boreal summer, accepted for publication in J. Climate.
 
Schubert, S. D. and M. L. Wu, Predictability of the 1997 and 1998 south Asian summer monsoons, J. Climate (in press), 2001.
 
Shaman, J., M. Stieglitz, V. Engel, R. Koster, and C. Stark: Representation of stormflow and a more responsive water table in a TOPMODEL-based hydrology model, submitted to Water Resources Research.
 
Stieglitz, M., A. Ducharne, R. D. Koster, and M. J. Suarez, The impact of detailed snow physics on the simulation of snow cover and subsurface thermodynamics at continental scales, J. Hydromet., 2, 228-242, 2001.
 
Stieglitz, M., A. Ducharne, R. D. Koster, and M. J. Suarez, 2001: The impact of detailed snow physics on the simulation of snow cover and subsurface thermodynamics at continental scales, J. Hydromet. , 2, 228-242.
 
Sud, Y. C., D. M. Mocko, G. K. Walker, and R. D. Koster, 2001: Influence of land-surface fluxes on precipitation: Inferences from simulations performed with ARM-CART SCM dataset, Mon. Weather Rev , 14, 3666-3691.
 
Sui, C. H., X. Li, M. M. Rienecker, K. M. Lau, I. Laszlo, and R. T. Pinker, 2002: The impacts of daily surface forcing in the upper ocean over the Tropical Pacific: A numerical study, J. Clim., (in press).
 
Troccoli, A., M. M. Rienecker, C. L. Keppenne, and G.C. Johnson: Temperature data assimilation with salinity corrections: Validation in the tropical Pacific ocean, 1996-1998, submitted to J. Geophys. Res.
 
2000
 
Chang, Y., S. D. Schubert and M. J. Suarez, Boreal winter predictions with the GEOS-2 GCM: The role of boundary forcing and initial conditions. Quart. J. Roy. Met.Soc., 126, 1-29, 2000.
 
Dirmeyer, P. A., F. J. Zeng, A. Ducharne, J. Morrill, and R. D. Koster, The sensitivity of surface fluxes to soil water content in three land surface schemes, J. Hydromet., 1, 121-134, 2000.
 
Ducharne, A., R. D. Koster, M. J. Suarez, M. Stieglitz, and P. Kumar, A catchment-based approach to modeling land surface processes in a GCM, Part 2,cParameter estimation and model demonstration, J. Geophys. Res., 105, 24823-24838, 2000.
 
Keppenne C. L., Data assimilation into a primitive equation model using a parallel ensemble Kalman filter, Mon. Wea. Rev., 128, 1971-1981, 2000.
 
Koster, R. D., M. J. Suarez, A. Ducharne, M. Stieglitz, and P. Kumar, A catchment-based approach to modeling land surface processes in a GCM, Part 1, Model Structure, J. Geophys. Res., 105, 24809-24822, 2000.
 
Koster, R. D., M. J. Suarez, and M. Heiser, Variance and predictability of precipitation at seasonal-to-interannual timescales, J. Hydromet., 1, 26-46, 2000.
 
Mehta, V.M., M.J. Suarez, J. Manganello and T.L. Delworth, Oceanic influence on the North Atlantic Oscillation and associated Northern Hemisphere climate variations: 1959-1993, Geophys. Res. Lett., 27, 121-124, 2000.
 
Yu, L., and M. M. Rienecker, The Indian ocean warming of 1997-1998 and its relation to ENSO, J. Geophys. Res., 105, 16923-16939, 2000.
 
1999
 
Ducharne, A., R. D. Koster, M. J. Suarez, P. Kumar, and M. Stieglitz, A catchment-based land surface model for GCMs and the framework for its evaluation, Physics and Chemistry of the Earth, 24, 769-773, 1999.
 
Koster, R. D., and M. J. Suarez, A simple framework for examining the interannual variability of land surface moisture fluxes, J. Climate, 12, 1911-1917, 1999.
 
Shukla, J., J. Anderson, D. Baumhefner, C. Brankovic, Y. Chang, E. Kalnay, L. Marx, T. Palmer, D. Paolino, J. Ploshay, S. Schubert, D. Straus, M. Suarez, J. Tribbia, Dynamical seasonal prediction, submitted to Bull. Amer. Met. Soc., 1999.
 
Yu, L., and M. M. Rienecker, Mechanisms for the Indian Ocean warming during the 1997-98 El Niño, Geophys. Res. Lett., 26, 735-738, 1999.
 
1998
 
Yu, L., and M. M. Rienecker, Evidence of an extratropical atmospheric influence during the onset of the 1997-98 El Niño, Geophys. Res. Lett., 25, 3537-3540, 1998.
 
   
  Technical Reports
   
 
Bacmeister, J. T., P. J. Pegion, S. D. Schubert, and M. J. Suarez, Atlas of seasonal means simulated by the NSIPP1 atmospheric GCM, NASA Tech. Memo-2000-104606, Vol. 17, 194pp, 2000.
 
Keppenne, C.L. and M.M. Rienecker, Design and implementation of a parallel multivariate Ensemble Kalman filter for the Poseidon ocean general circulation model, NASA Tech. Memo-2001-104606, Vol. 21, 35pp, 2001.  [pdf]
 
Pegion, P., S. Schubert, and M. J. Suarez, An Assessment of the Predictability of Northern Winter Seasonal Means with the NSIPP1 AGCM. NASA Tech. Memo-2000-104606, Vol. 18, 100pp, 2000.
 
   
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